This kind of crab toy is made of plastic material, and the surface and edge are smooth that will not harm your baby, you can order without worries. This crab toy is designed with clockwork that is convenient for your children to play, the crab could crawl on the ground when pulling the rope, and your baby could follow it to exercise the walking capacity. This kind of bath toy is suitable for bath tub, pool, bathroom, outdoor and beach, and it is fit for baby of different ages, you can order without worries.